Medium vs Substack
Head-to-head usage across the sites we track.
Top sites by authority
Medium · Substack · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
6
3
Open Page Rank 8+
41
14
Open Page Rank 7+
102
60
Open Page Rank 6+
144
137
Open Page Rank 5+
204
226
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Medium · Substack · share of sites in each country using one or the other
United States
1,153
2,725
India
1,047
805
United Kingdom
729
862
Canada
608
669
Australia
539
369
Brazil
573
314
France
575
303
Germany
545
332
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Medium | Substack |
|---|---|---|
| LCP | 2.3 s | 1.9 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 500 ms |
Median site's p75 values from the Chrome UX Report, Jun 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.